电控发动机故障诊断专家系统设计.pdf

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1、机床与液压HydromechatronicsEngineeringVe1．4lNo．24Dec．2013DOI：10．3969／j．issn．1001-3881．2013．24．019DesignofExpertSystemofElectronicControlEngineFault‘●一●-DiagnosisWEIDan，ZHANGZhongyangCollegeofAutomobileandTrafficEngineering，LiaoningUnive~ityofTechnology，Ji

2、nzhou121001，ChinaAbstract：Thispaperdesignsanexpeasystemofelectroniccontrolenginefaultdiagnosiswhichisaccordtothedemandsandthecharacteristicsoftheexpe~systemofelectroniccontrolengmefaultdiagnosis．andusesfaulttreetechnologycombinedwithWebserver，basedon

3、theB／Sstructure．Theexpe~systemcanrealizethattheuserchoicefaultphenomenaanditcansuggestpossiblecausesandproviderepairrecommendations．Keywords：faultdiagnosis，expe~system，faulttreecontrolenginefaultdiagnosisbasedonB／S，which1．Introductionapplyingthetechn

4、ologyoffaulttreediagnosis，andrealizingrapid，accurateandintelligentdiagnosisforAlongwiththeenhanceoftheautomobiletech-commonfaultsofelectroniccontrolengine[3]．nology，theautomobilestructureandfunctionarecomplexandperfectdaybyday，especiallythecon—2．Thes

5、ystemtotaldesignputerandthecontrolscienceappliedwidelyonauto—mobile，itimprovedthedynamics，theeconomyandTheexpertsystemofelectroniccontrolfaultdi．theemissionsetc．oftheautomobile[1]．ElectronicagnosisbasedonWEBincludesthefollowingmud—controltechnologyma

6、kestheautomobileashigh—techules，showninFig．1：productswithmechanical，electricalandfluid，butitExpertSystemofElectronicContro1needshigherrequirementsf0rthetechnologyofauto—EngineFaultDiagnosismobilefaultdiagnosisandmaintenance，theconfigu—rationofmainten

7、ancehardwareandsoftwareandthemaintenancepersonneltechnical1eve1．soiturgentneedanintelligentsystemwhichcanguideautomo—bilemaintenancetoloeatethefaultparts．findoutl憾thecausesofthefaultsandgivemaintenancepropos—Fig．1Theoverallstruetrueofexpe~systema1．Sh

8、aringtheserviceinformationofautofaultdiag-ofenginefaultdiagnosisnosisthroughtheinternet，itnotonlycanprovide11Electronicfuelinjectionsystemmodulepremiumservicesforusers，butalsocanreduceex—Themainfunctionofthemoduleistostorethepensesandcostsforautomobi